I have heard of some individuals who prefinish the side of the panel to be ribbed first masking off the area that will be in contact with the inner rim as well as the ribs. I have not done this yet the idea of slightly easier cleanup of glue without it soaking into the wood near the ribs is tempting. However, I have found that when a piece of wood only has a finish on one side and you change the EMC, it tends to warp. First, why is that and does that tendency suggest that the one side finishing process prior to ribbing is a bad idea? David Love davidlovepianos at comcast.net www.davidlovepianos.com
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